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Claunia.Encoding/Claunia.Encoding/ATASCII.cs

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//
// ATASCII.cs
//
// Author:
// Natalia Portillo <claunia@claunia.com>
//
// Copyright © 2016-2021 Natalia Portillo
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System.Text;
namespace Claunia.Encoding
{
/// <summary>Represents an ATARI Standard Code for Information Interchange character encoding of Unicode characters.</summary>
public class ATASCII : SingleByteEncodingWithRunes
{
/// <inheritdoc />
public override string BodyName => "atascii";
/// <inheritdoc />
public override int CodePage => 0;
/// <inheritdoc />
public override string EncodingName => "Atari Standard Code for Information Interchange";
/// <inheritdoc />
public override string HeaderName => "atascii";
/// <inheritdoc />
public override string WebName => "";
/// <inheritdoc />
public override int WindowsCodePage => 0;
/// <inheritdoc />
public override bool IsBrowserDisplay => false;
/// <inheritdoc />
public override bool IsBrowserSave => false;
/// <inheritdoc />
public override bool IsMailNewsDisplay => false;
/// <inheritdoc />
public override bool IsMailNewsSave => false;
/// <inheritdoc />
public override bool IsReadOnly => false;
/// <inheritdoc />
public override bool IsSingleByte => true;
/// <summary>The ATASCII to Unicode character map.</summary>
protected override Rune[] CharTable => new[]
{
// 0x00
new Rune(0x2665), new Rune(0x251C), new Rune(0x1FB87), new Rune(0x2518), new Rune(0x2524), new Rune(0x2510),
new Rune(0x2571), new Rune(0x2572),
// 0x08
new Rune(0x25E2), new Rune(0x2597), new Rune(0x25E3), new Rune(0x259D), new Rune(0x2598), new Rune(0x1FB82),
new Rune(0x2582), new Rune(0x2596),
// 0x10
new Rune(0x2663), new Rune(0x250C), new Rune(0x2500), new Rune(0x253C), new Rune(0x25CF), new Rune(0x2584),
new Rune(0x258E), new Rune(0x252C),
// 0x18
new Rune(0x2534), new Rune(0x258C), new Rune(0x2514), new Rune(0x001B), new Rune(0x2191), new Rune(0x2193),
new Rune(0x2190), new Rune(0x2192),
// 0x20
new Rune(0x0020), new Rune(0x0021), new Rune(0x0022), new Rune(0x0023), new Rune(0x0024), new Rune(0x0025),
new Rune(0x0026), new Rune(0x0027),
// 0x28
new Rune(0x0028), new Rune(0x0029), new Rune(0x002A), new Rune(0x002B), new Rune(0x002C), new Rune(0x002D),
new Rune(0x002E), new Rune(0x002F),
// 0x30
new Rune(0x0030), new Rune(0x0031), new Rune(0x0032), new Rune(0x0033), new Rune(0x0034), new Rune(0x0035),
new Rune(0x0036), new Rune(0x0037),
// 0x38
new Rune(0x0038), new Rune(0x0039), new Rune(0x003A), new Rune(0x003B), new Rune(0x003C), new Rune(0x003D),
new Rune(0x003E), new Rune(0x003F),
// 0x40
new Rune(0x0040), new Rune(0x0041), new Rune(0x0042), new Rune(0x0043), new Rune(0x0044), new Rune(0x0045),
new Rune(0x0046), new Rune(0x0047),
// 0x48
new Rune(0x0048), new Rune(0x0049), new Rune(0x004A), new Rune(0x004B), new Rune(0x004C), new Rune(0x004D),
new Rune(0x004E), new Rune(0x004F),
// 0x50
new Rune(0x0050), new Rune(0x0051), new Rune(0x0052), new Rune(0x0053), new Rune(0x0054), new Rune(0x0055),
new Rune(0x0056), new Rune(0x0057),
// 0x58
new Rune(0x0058), new Rune(0x0059), new Rune(0x005A), new Rune(0x005B), new Rune(0x005C), new Rune(0x005D),
new Rune(0x005E), new Rune(0x005F),
// 0x60
new Rune(0x2666), new Rune(0x0061), new Rune(0x0062), new Rune(0x0063), new Rune(0x0064), new Rune(0x0065),
new Rune(0x0066), new Rune(0x0067),
// 0x68
new Rune(0x0068), new Rune(0x0069), new Rune(0x006A), new Rune(0x006B), new Rune(0x006C), new Rune(0x006D),
new Rune(0x006E), new Rune(0x006F),
// 0x70
new Rune(0x0070), new Rune(0x0071), new Rune(0x0072), new Rune(0x0073), new Rune(0x0074), new Rune(0x0075),
new Rune(0x0076), new Rune(0x0077),
// 0x78
new Rune(0x0078), new Rune(0x0079), new Rune(0x007A), new Rune(0x2660), new Rune(0x007C), new Rune(0x1F8B0),
new Rune(0x25C0), new Rune(0x25B6),
// 0x80
new Rune(0x0000), new Rune(0x0000), new Rune(0x258A), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0x88
new Rune(0x25E4), new Rune(0x259B), new Rune(0x25E5), new Rune(0x2599), new Rune(0x259F), new Rune(0x2586),
new Rune(0x0000), new Rune(0x259C),
// 0x90
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x25D8), new Rune(0x2580),
new Rune(0x0000), new Rune(0x0000),
// 0x98
new Rune(0x0000), new Rune(0x2590), new Rune(0x0000), new Rune(0x000D), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xA0
new Rune(0x2588), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xA8
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xB0
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xB8
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xC0
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xC8
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xD0
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xD8
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xE0
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xE8
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xF0
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000),
new Rune(0x0000), new Rune(0x0000),
// 0xF8
new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0000), new Rune(0x0007),
new Rune(0x0000), new Rune(0x0000)
};
/// <summary>Converts a Unicode character to an ATASCII character</summary>
/// <returns>ATASCII character.</returns>
/// <param name="character">Unicode character.</param>
private protected override byte GetByte(Rune character) => character.Value switch
{
0x2665 => 0x00,
0x251C => 0x01,
0x1FB87 => 0x02,
0x2518 => 0x03,
0x2524 => 0x04,
0x2510 => 0x05,
0x2571 => 0x06,
0x2572 => 0x07,
0x25E2 => 0x08,
0x2597 => 0x09,
0x25E3 => 0x0A,
0x259D => 0x0B,
0x2598 => 0x0C,
0x1FB82 => 0x0D,
0x2582 => 0x0E,
0x2596 => 0x0F,
0x2663 => 0x10,
0x250C => 0x11,
0x2500 => 0x12,
0x253C => 0x13,
0x25CF => 0x14,
0x2584 => 0x15,
0x258E => 0x16,
0x252C => 0x17,
0x2534 => 0x18,
0x258C => 0x19,
0x2514 => 0x1A,
0x001B => 0x1B,
0x2191 => 0x1C,
0x2193 => 0x1D,
0x2190 => 0x1E,
0x2192 => 0x1F,
0x0020 => 0x20,
0x0021 => 0x21,
0x0022 => 0x22,
0x0023 => 0x23,
0x0024 => 0x24,
0x0025 => 0x25,
0x0026 => 0x26,
0x0027 => 0x27,
0x0028 => 0x28,
0x0029 => 0x29,
0x002A => 0x2A,
0x002B => 0x2B,
0x002C => 0x2C,
0x002D => 0x2D,
0x002E => 0x2E,
0x002F => 0x2F,
0x0030 => 0x30,
0x0031 => 0x31,
0x0032 => 0x32,
0x0033 => 0x33,
0x0034 => 0x34,
0x0035 => 0x35,
0x0036 => 0x36,
0x0037 => 0x37,
0x0038 => 0x38,
0x0039 => 0x39,
0x003A => 0x3A,
0x003B => 0x3B,
0x003C => 0x3C,
0x003D => 0x3D,
0x003E => 0x3E,
0x003F => 0x3F,
0x0040 => 0x40,
0x0041 => 0x41,
0x0042 => 0x42,
0x0043 => 0x43,
0x0044 => 0x44,
0x0045 => 0x45,
0x0046 => 0x46,
0x0047 => 0x47,
0x0048 => 0x48,
0x0049 => 0x49,
0x004A => 0x4A,
0x004B => 0x4B,
0x004C => 0x4C,
0x004D => 0x4D,
0x004E => 0x4E,
0x004F => 0x4F,
0x0050 => 0x50,
0x0051 => 0x51,
0x0052 => 0x52,
0x0053 => 0x53,
0x0054 => 0x54,
0x0055 => 0x55,
0x0056 => 0x56,
0x0057 => 0x57,
0x0058 => 0x58,
0x0059 => 0x59,
0x005A => 0x5A,
0x005B => 0x5B,
0x005C => 0x5C,
0x005D => 0x5D,
0x005E => 0x5E,
0x005F => 0x5F,
0x2666 => 0x60,
0x0061 => 0x61,
0x0062 => 0x62,
0x0063 => 0x63,
0x0064 => 0x64,
0x0065 => 0x65,
0x0066 => 0x66,
0x0067 => 0x67,
0x0068 => 0x68,
0x0069 => 0x69,
0x006A => 0x6A,
0x006B => 0x6B,
0x006C => 0x6C,
0x006D => 0x6D,
0x006E => 0x6E,
0x006F => 0x6F,
0x0070 => 0x70,
0x0071 => 0x71,
0x0072 => 0x72,
0x0073 => 0x73,
0x0074 => 0x74,
0x0075 => 0x75,
0x0076 => 0x76,
0x0077 => 0x77,
0x0078 => 0x78,
0x0079 => 0x79,
0x007A => 0x7A,
0x2660 => 0x7B,
0x007C => 0x7C,
0x1F8B0 => 0x7D,
0x25C0 => 0x7E,
0x25B6 => 0x7F,
0x258A => 0x82,
0x25E4 => 0x88,
0x259B => 0x89,
0x25E5 => 0x8A,
0x2599 => 0x8B,
0x259F => 0x8C,
0x2586 => 0x8D,
0x259C => 0x8F,
0x25D8 => 0x94,
0x2580 => 0x95,
0x2590 => 0x99,
0x000D => 0x9B,
0x2588 => 0xA0,
0x0007 => 0xFD,
_ => 0x3F
};
}
}
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